Final answer:
The ladle for a self-serve pot of soup should be stored on a clean tray to ensure hygiene. So, the correct answer is option c.
Step-by-step explanation:
The ladle for a self-serve pot of soup should be stored on a clean tray. This ensures that the ladle remains hygienic and free from any contaminants. Storing the ladle in a bowl of soup or submerged in water can lead to cross-contamination and make the ladle unclean. Hanging the ladle on the wall may not be ideal as it can collect dust and other particles.
So, the correct answer is option c.